Aircraft windshield safety guard



Aug. 31, 1943- i .1. DE STEFANO 0 AIRCRAFT WINDSHIELD SAFETY GUARD Filed March 16, 1942 Patented g 3 T DfS AT -P T I E a; 1,328,39 j I mC FT WINDsHIELn SAFETY GUARD 101111; De StefanolJack'sonHeights, N; Y.

Application March 1e,,1942 ,sena1no. 434,972

2 Claims. le 160-470);

My invention relates to aircraft Windshields, Y through openings 44 the plates and upwardly i and has among its objects and advantages the Iaroundgrooved sheaves 46 mounted on the wall; j provision of an improved safetyguard located 34 and back to the spool 31). The'cable 28 passes adjacent the inner' face ofthe windshield for the loosely through the openings 36 and 44 so that protection and safety of the flight crew, against 5' when the outsidefrun 4 8 and the insiderun 50 the entry of foreign bodies, as birds in flight. I are moved, upwardly through rotation of the In the accompanying drawing:' Q j {Figure 1 is an elevational view of a portion nested in face to face relationship adjacent the or an airplane body and its windshield illustratwall 34.? Openings 5! are provided in the wall ing my invention applied thereto 7 a 10 34'-for,loosjelyreceiving the cable"Z8,,and1the pec al: the plateau fwm jbe liftedupwardly and Figure 2 is an-enlarged insideelevational viewf -p'er endsiof the cables are at shed t0 {t e 1 of the safetyfguard partly in section; 7 wall 34. 1 l v I v l Figure 3is a sectionalvie taken along the o o e f the SD 39 is C nec ed a 1m 3. 3 of F u and crank to facilitate rotation of the spool 30.

Figure 4 is a sectional view taken along the ust plates may be, elevated to' an inopline 4+4, of Figure 2. erativepcsition through-rotation of the spoo1gillv In the embodimentselected for illustration, I In one direction and lowered to the-operative make use ofltwo channel members It opening gposition of Figures 2 andv3through-rotation or in; the direction ut each-other and arranged-in h spo l in the opposite di'rection parallelism, with each channel having a flange 20 u e lustrates the channels lavas being;

[2 throughthe medium of, which the channels 'br v ded Withribs i 56 riding in "not es 58in may be secured to the body structure I41by screws i the ends .of the plates Z0150 rst aifithe p ates or bolts 16, A housing] IBinterconnects the up-- fromzrotation about their longitudinal axes when per ends of the channels l0, Aseries of metal an impact isexerted against the windshield; All plates 20 is arranged transversely of the channels lp a h a l finish I eliminateslare.

m and are set edgewi se to the windshield 22; I he ho si i i ed withadependin wall The plates 20 lie horizontally and arepositioned J wh Shields the p es r miv ew w en parallel to the line of vision of the pilot. In they are elevated to an inoperative position. this positionythe plates provide maximum re-, "withoutzfurther elaboration; t i will sistance and minimum interference tovisibility. so fully illustrate myinvention, tha others mayQj J The-impact of a body striking the external face by applying currentknowledge-readily adapt the of the windshield will be exerted against the, same for use under various conditions of service.

edges of the plates 20. i I claim:

The endmarglns of the plates are slidably 1. A guard-device fora windshield comprising! guided in the channels l0, and the plates are connected one withlthe other at uniformly spaced each other and adapted to parallel awindshield,

a pair of channels opening in the direction of intervals through the medium of two cables 24 a housing at;the upper end of the channels, a a at both ends of the plates. [These cables are atplurality of plates having their v ends slidably .tached to the plates, as at 26, and the cables guided in the channels adapted forv positioning are located close to the longitudinal edge mar-' adjacentand edgewise to'thewindshield, flexible gins of the plates so as to more'efiectively ballinesconnecting said plates one with the other ance the plates in horizontal planes. Openings, at spacejcl intervals, fa rotaryspool mountedlln are provided in the plates ZUfthrough which; :the housing, a cable wound on said spool andopthe cables 24 are threaded and the connections eratively'connected with said plates'for raising 26 may comprise welded jolnta; e a I g Means for raising and lowerihgtheplates 120 snip, said cable extendingthrou h .openingsin comprises a cable "28 woundla fewtirnes aboutra: e the plates and attached to the lowermostplate,

5 thesamefromspacedj'apart to nestedrelationspool'30 tosecure a good hold on thespool, The H ,a depending plate on said housing maskin'g the cable passesaround grooved sheave '32 mounted, l plates in nested arrangement, and meansonsaid onthe bottom, wall 34 of' the housing, l8 and channels and; plates, to restrain turning of the" passes loosely through openings 38in the plates l plates about theirlongitudinal axes.{

20. ,The cable passes'around mqvea sheaves" 2,. In a guard device for a windshield ,fa pairt 18 mounted on plates "40 secured to: the lower or arallel spacedguidememb'ers, a cross mem end ofthe channels It], Thecableyisjthen ather at the upper end of the guide members, a

tached at 42to thelower plate pas plurality of plates having their ends slidably T5551 V e V 2,328, fitted in the iiide members and adapted for positioning adjacent and edgewise to a windshield, flexible linesconnecting saidplates one with the other at'spaced intervals, a rotary spool mounted on the cross member, a cable wound on said spool and extending through openings in said plates,

the said cable'being trained over a p1'111ey'mounted at the bottom of each guide member, the said cable being attached to the lowermost plate for selectively raising the. plates from depending spaced apart positions to elevated closely nested j 7 arrangement, and means on the guide members and the ends of the plates for restraining turning movement of the plates abouttheir longitudinal axes. I I

JOHN DEv STEFANO. 

